Train-actuated signal for road and street crossings



May 12, 1925.

S. PAVILLARD TRAIN ACTUATED SIGNAL FOR ROAD AND STREET CROSSINGS FiledNov. 5. 1924 Patented May 12, 1925.

UNITED STATES PATENT QFFICE.

.SAM PAVILLABD, OF DEGATUB, TEXAS.

Application filed November To all whom it may concern. Be it known thatI, SAM PAvrLLAnn, a citizen of the United States, residing at Decatur,in the county of Vise and State of Texas; have invented certain new anduseful Improvements in Train-Actuated Signals for Road and StreetCrossings, of which the following is a specification.

My invention relates to signaling devices for street and road crossingsand more particularly to train-actuated signals; and the object is toprovide a simple rotary signal and simple meansfor actuating the signalby the wheels of passing trains and which will be positively andcertainly actuated whenever a train passes and which will be actuated inplenty 01 time before the train reaches a crossing to prevent accidents.Other objects and advantages will be fully explained in the followingdescription. and the invention will be more particularly pointed out inthe claims.

Reference is had to the accompanying drawings which form a part of thisapplication.

Fig. 1 is a side elevation of the signaling devices and the means foractuating the signaling devices. Fig. 2 is a plan view ot the actuatingdevices. F ig. 3 is a cross-section, taken on the line of Fig. 1. Fig. 1

'1 is a cross-section, taken on the line -fi--i oi? Fig. 1. Fig. 5 is anenlarged detail view of the ratchet mechanism for rotating the signal.Fig. 6 is a detail view of a sounding device to be actuated along withthe revolving of the signal. Fig. 7 is a detail view of thewheel-actuated mechanism.

Similar characters of reference are used to indicate thesame partsthroughout the several views.

In the drawings a rail 1 is shown and a yielding bar 2 is opeiativelyconnected to the rail by clamps The bar 2 is carried by the hanger e towhich the bar 2 i'srigidly connected. The bar 2 isyieldable verticallyby reason of the spring supports for the hanger 4. Each hanger alias afoot piece.

5 which rests on top of a plunger 6 and this plunger is supported in theelevated position by a sprin 7 which supports the foot piece 5. The punger 6 is attached to the foot piece 5 and serves as a guide to makethe bar 2 move vertically. The spring 7 is supported in a hanger 8 and atubular guide 9 is screwed through the bottom of the hanger 8 for theplunger 6. Both hangers 8 and their connections are duplicates. The bar2 is drooped or curved downwardly oil-top nearthe ends so that thewheels of the train will run on the bar without knocking. The clamps aremerely for holding the bar 2 close to the mill. Anti-"friction rollers10 are carried by the bar 2 to prevent friction against the clamps 3.The tendency of the bar 2 is to move slightly in the direction of themoving train. The rollers 10 will cause the bar 2 to move vertically.The bar 2 actuatcs a lever 11 which is provided witha fulcrum 12 which'is rigid with the rail 1. rail in the manner as the clamp 3. A footpiece 13 extends under the rail and. a strip 14. extends over a portionof the rail flange and is bolted to the foot piece 13. The bar 2 isoperatively connected to the lever 11 by a U-bolt 15. The U-bolt isattached to the bar 2 by riveting or otherwise and a pin The fulcrum 12is attached to the 16 prevents removal of the lever from the v U-bolt15. The ill-bolt :15 slides'freely on the lever 11. The lever 11actuates a link bar 17 which is pivotally connected thereto andpivotally connected to a crank 18 which is rigid with a shaft 19 whichis prov led with bearings 20. The shaft lflis provided with anupstanding crank 21. A cord or cable 22 connected indirectly to thecrank 21. The cord 21 runs through a sleeve 22 and the cord isintercepted by a spring 23 to give resiliency to the cord. The object isto prevent sudden jerks on the signaling devices when the train wheelsstrike the bar 2.

T hecord 22 runs under an idle pulley 2d and is attached rigidly to theratchet lover or bar 25 and 18 extended and attached to the spring 26which is attached to a rigid bar 27. A spring 28 is attached to the bar27 and to a compound lever 29 which is provided with. a fulcrum 30 whichis attached to the lever 25. The lever 29 is pivotally connected .toanother lever 31- the ratchet wheel 23 to turn. This will revolve thesignal disks 3% by the repeated striking of the bar 2 by the wheels ofthe train. The two wires 26 and 28 serve to release the lever 29 fromthe ratchet wheel and to draw the slack out of the cable 22 to preparefor the next stroke. Another object of releasing the ratchet wheel is topermit the signal disks to return to their normal inoperative positions.In order that the disks may come back to the inoperative position, asshown in Fig. 1, one disk may be made heavier than the other. Variouschanges in the sizes, construction, and arrangement of the several partsmay be made without departing from my invention.

In addition to the revolving signal above described, a sounding deviceis provided. Revolving l'iea ers 36 are mounted on the shaft 33. Theboaters 36 are pivotally connected to arms 3'? which are rigidly clampedon the shaft 233. bell ll is mounted on an upright and a striker ortongue 39 is mounted on the upright A spring 4-0 is attached to theupright 2-38 and, to the striker 39. 'fhe heaters 36 actuate the striker39 and the spring t0 causes the tongue to strike the bell ll. Wheneverthe signal disks 3 f are revolving, the bell will be sounding.

"Yllftt I claim is,

1. Signaling apparatus for street and road crossings comprising arevolving shaft and signaling devices revolving therewith, soundingdevices consisting of a bell and a spring actuated striker co-operatingwith said signaling devices, arms actuated by said shaft, pivotedboaters carried by said arms for operating said striker, and means to beactuated by the wheels of a passing train for driving said shaft.

2. Signaling apparatus for street and road crossings comprising arevolving shaft and signaling devices revolving therewith, soundingdevices consisting of a bell and a spring controlled strikerco-operating with said signaling devices, revolving arms carried by saidshaft, and heaters loosely connected to said arms for actuating saidstriker.

3. Signaling apparatus for street and road crossings comprising arevolving shaft and signaling devices revolving therewith,soundingdevices consisting of a bell and a spring controlled strikerco-operating with said sig naling devices, revolving arms carried bysaid shaft, heaters loosely connected to said arms for actuating saidstriker, movable means to lie art atec. by the wheels of passing trains,and a cable actuated by said mov able means for revolving said shaft.

l. Signaling apparatus for street and road crossings comprising arevolving shaft and signaling devices revolving with said shaft,sounding devices consisting of a bell and a spring controlled strikercooperating with said signaling devices, arins carried by said shaft andprovided 'ith means for actuating said striker, a ratchet mechanism forrevolving said shaft, and means actuated by the wheels of passing trainsfor operating said ratchet mechanism.

5. Signaling apparatus for street and road crossings comprising arevolving shaft and signalingdevices revolving therewith, ratchetmechanism for revolving said shaft,

a depressing bar to be actuated by the wheels of passing trains, ahanger carrying said bar and yielding means concealed beneath a railwayrail supporting said hanger, clamping devices for guiding the verticalmovement of said bar, a crank shaft operativcly connccted to said bar,and a flexible cable operatively connected to said shaft and to saidratchet mechanism for revoh'ing said shaft.

In testimony whereof, I set my hand, this 15th day of October, 192%.

SAM Pl XVILLARD.

